Which is heavier, the earth or the moon

Answers

Answer 1

Answer:
When you say "heavy", you're talking about the gravitational force
between that object and another object, so it depends on what the
"other object" is.

If the "other object" is, let's say, the sun, then the gravitational attraction
between the Earth and sun is about 80 times as much as the gravitational
attraction between the Moon and sun, because the Earth has about 80 times
the mass of the Moon.

But if, somehow, the weight you have in mind is the gravitational attraction
between the Earth and the Moon, then those forces are equal. The force
of gravity between two objects depends on the product of both masses,
and it's equal in both directions.

If that isn't clear to you, let me give you this additional fact that's guaranteed
to knock you even further off-balance:

Your weight on the Earth is determined by the product of

   (your mass) times (the Earth's mass).

The Earth's weight on you is determined by the product of

   (your mass) times (the Earth's mass).

Your weight on Earth is the same as the Earth's weight on you.

Would you like to prove it ?

-- Turn the bathroom scale upside-down, so that the step-pad
    is on the floor.

-- Then step on it, so that you're standing on the bottom, which
    is facing up.

-- If you placed a little mirror on the floor, so that you can read
   the numbers, which are facing down toward the floor, you'll
   read your own weight, even though with the scale upside-down,
   you're weighing the Earth on you.

Further Explanation;

An atom

An atom is the smallest particle of an element that takes part in a chemical reaction.
It is made up of a nucleus and energy levels.
Atoms contain sub atomic particles; electrons found in the energy levels, neutrons and protons found in the nucleus of the atom.
Electrons are negatively charged, protons are positively charged while neutrons have no charge.
The positive charge of protons gives nucleus a positive charge which attracts the opposite charged electrons.

Rutherford Experiment

Rutherford carried out an experiment where he fired alpha particles at a piece of gold foil.
He found that about 1/800 of the alpha particles fired bounced back off of the gold foil.
He therefore, concluded that there was a part of the atom that was very dense, and that there was also lots of empty spaces.
According to Rutherford's model an atom contains a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus similar to the structure of the Solar system.

Shortcoming of Rutherford's model

Rutherford's model of the atom failed to explain why electrons were not pulled into the atomic nucleus by the attraction of opposite charges of the nucleus and electrons.

Keywords: Atom, Rutherford experiment, gold foil, nucleus of an atom, setbacks of Rutherford's model

Learn more about:

An atom: brainly.com/question/3335747
Rutherford's model: brainly.com/question/3335747
Short coming of Rutherford's model: brainly.com/question/3335747
Difference between Rutherford's and Bohr's model: brainly.com/question/3335747

Level: High school

Subject: Chemistry

Topic: Structure of an atom and Atomic models

Sub-topic: Rutherford's and Bohr's model

The particles would be deflected slightly after passing through the foil

Air is forced through the water to remove gases is called?

Answers

The process through which air is forced through water to remove gases is called aeration. Aeration is often used as a major step in water treatment plants to remove unwanted gases such as carbon dioxide, odors, and other impurities in water. The process also allows dissolved metals such as iron to oxidize.

Answer:

d. aeration

Explanation:

A toaster oven has a power rating of 1200W. If you cook a pizza in it for 1 hour at 450°F, how manyjoules of electrical energy are converted into heat by the toaster oven?

Answers

Answer;

= 4,320,000 joules

Explanation;

Power is the ratio of Work per unit time. When work is done in a given span of time, the ratio of work performed with respect to time is called Power.

Therefore;

Power = Work done/time

Power = 1200 Watts and t = 1 hour or 3600 seconds

Thus;

Work done = Power × time

= 1200 × 3600

= 4,320,000 joules or 4320 kJ

How does the scientific process generally begin?

Answers

Answer : To develop a scientific process is a big task. Initially the scientist or the interested researcher may start with the following steps;

a) Start with an Unsolved question;

b) Conduct experiments;

c) Analyse from the observations of the experiments

d) From the conclusions create an theoretical hypothesis;

e) Check for reproducibility of the test results.

f) Write a thesis and submit to a scientific community.

There are several approaches. The most favourable one (in my opinion) is this one:
1. Asking a question
2. Doing a research (how to answer this question)
3. Creating a hypothesis (NOT a thesis!)
4. Experimenting (to prove the hypothesis)
5. Analysing results from the experiment
6. Writing a thesis

A man pushes on a box at an angle of 30.0° with a force of 20.0 N and the box moves across the floor. Which of the following component of the force do you use to calculate work?

Answers

Not sure what the given options are, but the answer is the horizontal component. This is given by Force x cos(angle), or Fcos(θ), where θ is the angle. In this case that would be 20cos(30) = 17.32N

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